Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:28332
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Received-SPF: error (pb1.pair.com: domain php.net from 69.46.103.200 cause and error)
Date: Tue, 13 Mar 2007 23:40:45 +0100
Reply-To: Marcus Boerger <helly@php.net>
Message-ID: <1960276.20070313234045@marcus-boerger.de>
To: scott.mcnaught@synergy8.com
CC: internals@lists.php.net
In-Reply-To: <000101c76483$f691c470$0900a8c0@scottnote>
References: <36961.127.0.0.1.1173580198.squirrel@synergy8.com> <et0lff$906$1@sea.gmane.org> <000101c76483$f691c470$0900a8c0@scottnote>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] Native Singleton Implementation
From: helly@php.net (Marcus Boerger)

Hello scott,

  reason we are agsinst is that you can easily do i already in PHP.
Actually you can even do it in a manner everybody understands without
having to make the language more complex. Or in other words sometimes
it does not hurt doing a few keystrokes more. Instead it helps read-
and maintain-ability.

best regards
marcus

Monday, March 12, 2007, 9:53:52 AM, you wrote:

> Perhaps I should not call it singleton then.  Because I'm not trying to put
> a flexible design pattern with large degrees of freedom as such into core
> php.  All I am trying to achieve is a nice way for people to implement
> classes that only ever need one instance.  

> Can I ask why you are very much against this if you are?  It seems that most
> people need to do this at some point.  I am starting to feel there's a lot
> of negativity towards this because it's a different approach.

> Good point about the uniqueness across one / all php instances. I was only
> thinking of one unique instance for just the current php instance / request.
> Definitely something to consider.


> -----Original Message-----
> From: Sebastian Bergmann [mailto:sb@sebastian-bergmann.de] 
> Sent: Sunday, 11 March 2007 8:26 PM
> To: internals@lists.php.net
> Subject: Re: [PHP-DEV] Native Singleton Implementation

> scott.mcnaught@synergy8.com wrote:
>> Yes! Moving the singleton functionality into core php. Its an excellent
>> OOP feature.

>  Besides the obvious implementation considerations (should the Singleton
>  object be unique in a single PHP instance or across "all" PHP instances,
>  etc.), I am very much against putting reference implementations of
>  design patterns into a programming language. If you want this, you have
>  not understood the intention of design patterns (or the difference (in
>  degrees of freedom) when compared to algorithms).

> -- 
> Sebastian Bergmann                          http://sebastian-bergmann.de/
> GnuPG Key: 0xB85B5D69 / 27A7 2B14 09E4 98CD 6277 0E5B 6867 C514 B85B 5D69

> -- 
> PHP Internals - PHP Runtime Development Mailing List
> To unsubscribe, visit: http://www.php.net/unsub.php




Best regards,
 Marcus